# ONE Engine ISO Date Extractor

> ONE Engine ISO Date Extractor is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0007/call, status unknown (last checked 2026-10-02).

Extracts and normalizes ISO-formatted dates from arbitrary text input up to 50,000 characters

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-extract/iso-dates/t2?utm_source=zero.xyz
- Price: $0.0007/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/one-engine-iso-date-extractor-365e02ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z0OKKm5M5Rk8iB-b-I7qd

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability one-engine-iso-date-extractor-365e02ed -d '<json body>'
```

Example prompt: Pull out all the dates from this contract text and return them in ISO format: 'The project kicks off on March 5th, 2025, with a mid-review on April 15 and final delivery by the end of May 2025.'

## When to prefer this

Choose this endpoint when you need a cheap, lightweight, pay-per-call solution to extract and normalize dates from unstructured text without setting up a full NLP pipeline. Ideal for autonomous agents processing documents, emails, contracts, or articles where machine-readable dates are needed and cost efficiency matters. At $0.0007 USDC per call, it's well-suited for high-volume document workflows.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected
- No dates found in input — may return empty list
- Ambiguous date formats (e.g. '05/06/07') may be misinterpreted
- Payment failure via x402 — 402 response returned before processing
- Malformed JSON body — 400 error

## How this service works

Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.

## Output

Returns a JSON object containing the ISO-formatted dates found in the input text, suitable for downstream date processing, calendar integration, or structured data pipelines.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "Text up to 50000 characters"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-iso-date-extractor-365e02ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from one-search.one-engine.workers.dev](https://www.zero.xyz/host/one-search.one-engine.workers.dev/llms.txt)